crond

crond [options]

System administration command. Normally started in a system startup file. Execute commands at scheduled times, as specified in users' files in /var/spool/cron. Each file shares its name with the user who owns it. The files are controlled via the command crontab. The crond command will also read commands from the /etc/crontab file and from the /etc/cron.d/ directory. See anacron for scheduling events on systems that are frequently rebooted or powered off, such as notebook computers.